function goTo(url){
	if (url == "alpha"){
		document.location.href = 'alpha_cat.asp';
	} else if (url == "101"){
		document.location.href = 'cats_101.asp';
	} else if (url == "catnip"){
		document.location.href = 'catnip.asp';
	} else if (url == "catnap"){
		//do something here
	} else if (url == "collaborative"){
		document.location.href = 'collaborative_cats.asp';
	} else if (url == "calls"){
		document.location.href = 'cat_calls.asp';
	} //end if
	
} //end function



var alpha_cat = new Image();
alpha_cat.src = "/images/nav/alphacat.gif";

var alpha_cat_r = new Image();
alpha_cat_r.src = "/images/nav/alphacat_f4.gif";

var cats_101 = new Image();
cats_101.src = "/images/nav/cats101.gif";

var cats_101_r = new Image();
cats_101_r.src = "/images/nav/cats101_f4.gif";

var catnip = new Image();
catnip.src = "/images/nav/catnip.gif";

var catnip_r = new Image();
catnip_r.src = "/images/nav/catnip_f4.gif";

var collaborative_cats = new Image();
collaborative_cats.src = "/images/nav/collab.gif";

var collaborative_cats_r = new Image();
collaborative_cats_r.src = "/images/nav/collab_f4.gif";

var cat_calls = new Image();
cat_calls.src = "/images/nav/calls.gif";

var cat_calls_r = new Image();
cat_calls_r.src = "/images/nav/calls_f4.gif";



function swapImage(element, newImg, newLayer, txt)
{
   if (document.images)
   {
	document.images[element].src = eval(newImg + ".src"); 

	
	if (document.all) { //for IE
		document.all[newLayer].innerHTML = txt;
	}
  
   	else if (document.getElementById) { //for Netscape 6.x
      		document.getElementById(newLayer).innerHTML = txt;
	}

   }

}